proxy.once('middleware', function (gasket, app) { assume(gasket).equals(engine); assume(app).equals('testing'); proxy.once('withTiming', function (gasket, arg) { assume(gasket).equals(engine); assume(arg).equals('testing'); proxy.once('someEvent', function (gasket, arg) { assume(gasket).equals(engine); assume(arg).equals('testing'); proxy.once('someEvent', function () { called = true; });